| Range | 0-18MΩ |
| Alarm | Red led when measurement > threshold Green led when measurement < threshold |
| Connection | BNC |
| Power | 220 Volts 50Hz for TESTO-2D/S 9V Battery NI-cad accu. Provided for the TESTO-C-2D/P |
| Display | 2 digits |
| Dimensions | 115 x72 x45 mm |
| Weight | 150g |